Windows 10 update history

Applies to: Windows 10, version 20H2, all editionsWindows Server, version 20H2, all editions

Updates for Windows 10, version 20H2 and Windows Server, version 20H2


Windows 10 is a service, which means it gets better through periodic software updates.

The great news is you usually don’t have to do anything! If you have enabled automatic updates, new updates will automatically download and install whenever they’re available, so you don’t have to think about it.
 
On the left side of this page, you’ll find a list of all the updates released for this version of Windows. You can also find more information about releases and any known issues. Installing the most recent update ensures that you also get any previous updates you might have missed, including any important security fixes.

 

For more information about the update and how to get it, see: 

 

What's new for Windows 10, version 20H2 and Windows 10, version 2004 release notes


Windows 10, versions 20H2 and 2004 share a common core operating system and an identical set of system files. As a result, the release notes for Windows 10, version 20H2 and Windows 10, version 2004 will share an update history page. Each release page will contain a list of addressed issues for both 20H2 and 2004 versions. Note that the 20H2 version will always contain the fixes for 2004; however, 2004 will not contain the fixes for 20H2. The update history page will provide you with the build numbers for both 20H2 and 2004 versions so that it will be easier for support to assist you if you encounter issues.

Current status of Windows 10, version 20H2 and Windows Server, version 20H2


For the most up-to-date information about Known Issues for Windows and Windows Server, please go to the Windows release health dashboard.

Known issues


Symptom Workaround
Certain Japanese half-width Katakana and full-width Katakana characters that have a consonant mark aren’t interpreted as the same character. When you use the CompareStringEx() function with the NORM_IGNOREWIDTH flag to compare them, these characters are evaluated as different because of an issue in the sorting rule. This issue affects all the updates starting on October 29, 2020 for Windows 10, version 20H2. Currently, there is no workaround for this issue.

Notes and messages


General

Troubleshooting


If you have questions or need help activating or troubleshooting Windows, see our help topics below: